Correlation of the Drag Characteristics of a P-51B Airplane Obtained from High-Speed Wind-Tunnel and Flight Tests

NACA WARTIME REPORTS are reprints of papers originally issued to provide rapid distribution of advance research results to an authorized group requiring them for the war effort.They were previously held unde,' a security status but are now unclassified.Some of these reports were not technically edited.A.l have been reproduced without change in order to expedite general distribution.